Erfindungsgemäß wurde gefunden, dass unter Verwendung eines Rotor-Stator-Systems ein sehr schonender Aufschluss Wertstoff-haltiger Zellen möglich ist.Disruption of cells, comprises using a rotor-stator system. Independent claims are also included for: (1) preparing a recyclable material, preferably a lipid containing polyunsaturated fatty acids, comprising performing cell disruption, and carrying out partial or complete separation of the cellular debris after completion of the cell disruption (2) producing a food or feed comprising providing a suspension of cells, preferably cells from Thraustochytriales, having a moisture content of at least 10-70 wt.%, preferably 20-60 wt.%, performing cell lysis by rotor-stator system using an energy input of at most 50 kWh per tonne of slurry, preferably 2-20 kWh or 3-15 kWh, respectively per tonne of suspension, mixing the cell suspension with additional food or feed ingredients, and preparing the final product by compacting or extrusion process (3) a recyclable material obtained from the above mentioned process (4) a food or feed produced from the above mentioned method (5) breeding animals, preferably fin-fish or crustaceans, preferably salmon, comprising using food or feed product and (6) animals, preferably fin-fish or crustaceans, preferably salmon, which are bred by above mentioned method.
